Home / 105,420.91-158,193.75-38,907.37

Finding the Fourth Proportional to 105,420.91, 158,193.75 and 38,907.37

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Solution

The fourth proportional to 105,420.91, 158,193.75 and 38,907.37 is: 58,384.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,420.91 : 158,193.75 = 38,907.37 : x
  2. Step 2: Convert to fraction form
    105,420.91/158,193.75 = 38,907.37/x
  3. Step 3: Cross multiply
    105,420.91x = 158,193.75 × 38,907.37
  4. Step 4: Simplify right side
    105,420.91x = 6,154,902,762.94
  5. Step 5: Solve for x
    x = 6,154,902,762.94/105,420.91
  6. Step 6: Final answer
    x = 58,384.08

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.